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We reserve the right to make technical changes | 83055600dUK – Translation of the original instruction manual (HMD 2) | ait-deutschland GmbH
Part 1 of the controller manual, program area “Service“, sec-
tion “Determining priorities“.
Determining system setting
The menu is not shown in full here.
NOTE
If 2 heat pumps are connected, note the number displayed in
the top menu row. It provides information about which heat
pump is currently addressed.
In order to change the addressed heat pump: page 11,
“Changing the addressed heat pump in submenus“
IMPORTANT
Incorrect settings not oriented towards the system compo-
nents put the safety and functional capability of the sys-
tem at risk and can lead to damage.
NOTE
Enter deviations from the relevant factory settings in the
overview “System setting during commissioning”.
page 41, “System setting during commissioning“
El. sup. blockade
Electrical supply off-times
no 2hg
2hg at electrical supply off-time also
locked
with 2hg
2hg released for electrical supply
Setting only takes effect as 2 hg for
boiler or thermal.
Roomstat.
Roomstation
No
No roomstation connected
RFV
Room remote adjuster connected
RBE
RBE room control unit (purchasable
accessories) connected
Smart
Smart-individual room control
(purchasable accessories) connected
Integration
Hydraulic Integration
Setting the hydraulic integration of the buffer tank
Return
hydraulic integration with row tank
(flow/return)
Sep. tank
hydraulic integration with parallel tank
(multifunction tank)
NOTE
External return flow sensor (TRLext) required for “Sep.
tank” setting.
Mixing circ 1
Mixing circle 1
Setting the functioning of the mixer control
hysteresis cool.contr Hysteresis cooling circuit
Standard value for reversible air/water heat pumps: 3 K
service water max
Maximum domestic hot water
temperature
A value, which is set to limit the maximum set temperature of
the domestic hot water.
min.systemtemp.
Minimum return set-point temperature
Will not be exceeded in operation.
Defrost end temperature
minimal flow mc 1 Minimum flow temperature mixing
circuit 1
Will not be exceeded in operation.
maximum flow mc 1 Maximum flow temperature after the
charge mixing circuit 1
Will only be displayed if mixing circuit 1 is set to charge mixer.
Then the supply sensor on TB1 serves to restrict the supply
temperature in accordance with the mixer. This means that If
TB1 exceeds the value set here, the charge mixer is driven in
the “closed” direction.
Hysteresis 2.CP short Hysteresis heating control 2nd compr.
Shorten HR hysteresis. Hysteresis heating regulator from
which the cut-in time of the 2nd. compressor stage is
shortened (See “System setting”).
Cutting-in compressor 2:
A
No cut-in
B
Shortened cut-in
C
Return flow set value
D
Heat regulator hysteresis
E
Hysteresis HR shortened
min. flow cooling
Minimum flow temperature cooling
If the temperature at the cooling sensor falls below this
temperature (depending on integration TB1, TB2 or TRL), the
cooling is interrupted (factory setting 18°C). At the same time,
the displayed value is the minimum limit value for settable
cooling setpoint temperatures.
min. flow cooling 2CP Minimum flow temperature cooling
2nd compressor
If the temperature at the cooling sensor falls below this
temperature (depending on integration TB1, TB2 or TRL), the
cooling is interrupted (factory setting 18°C). At the same time,
the displayed value is the minimum limit value for settable
cooling setpoint temperatures.
Scroll all the way down,
cancel or save the settings.
Determining priorities
